Section 2. Installation; Heater Description - Pentair ETi 400 NA ASME Guía De Instalación Y De Usuario

Section 2: Installation Instructions
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Section 2: Installation Instructions
THIS HEATER MUST BE INSTALLED AND SERVICED BY A PROFESSIONAL SERVICE TECHNICIAN,
QUALIFIED IN POOL HEATER INSTALLATION.
Pentair strongly recommends that all vents, pipes and exhaust systems be initially and periodically tested for proper
operation. This testing can be accomplished by using a hand-held carbon monoxide meter and/or by consult-
ing with a gas professional. Pool and spa heaters must be used in conjunction with carbon monoxide detectors
installed near the pool heater. The carbon monoxide detectors must be periodically inspected for proper operation so
as to insure continued safety. Broken or malfunctioning carbon monoxide detectors must be replaced immediately.

HEATER DESCRIPTION

The ETi 400 Heater has precisely matched orifice plates to meter the air and gas into the mixer. The blower draws the air
®
and gas through the mixer and forces it into the burner's flame holder. A sealed TitanTough™ Heat Exchanger surrounds
the flame holder, discharging exhaust gases out the flue (See Figure 7 & 8). Use a 2 in fitting to connect to the 2 in PVC
slip unions provided with the heater. The outer manifold remains cool; no heat sinks are required. The heater operator
control panel is located on the side of the heater.
Upper Heat
Exchanger
Lower Heat
Exchanger
Auto gas
shut-off
switch
(AGS)
Tubing for
Condensate
Neutralizer
Cartridge
Figure 7. ETi
ETi 400 High Efficiency Pool and Spa Heater Installation and User's Guide
Vent Cap
Inlet Plumbing
Assembly
CPVC Flue
Outlet
®
400 Heater (Left Side View)
Condensate Neutralizer Cartridge
(Optional, P/N 475612 sold separately).
The cartridge may be mounted onto the heater
base for heater outdoor installation.
Tridicator (Water pressure and
Temperature gauges)
Upper Blower
Assembly
Lower Blower
High
Assembly
Limit
2-in Inlet
Switch
Plumbing
(HLS)
Assembly
Electrical
and
2-in Outlet
Bonding
Plumbing
lug
Assembly
To drain
To drain
Figure 8. ETi
Heater Base (Top View)
Exhaust
Assembly
®
400 Heater (RIght Side View)
Rev. C 4/2017